sending messages with new line

[redcat42]

.

[binwiederhier]

https://docs.ntfy.sh/publish/ -- the third example with the dog:

curl -d "There's someone at the door. 🐶

Pease check if it's a good boy or a hooman. 
Doggies have been known to ring the doorbell." \
  ntfy.sh/mydoorbell

or

echo -e "hi\nthere" | curl -T- ntfy.sh/mydoorbell

[redcat42]

.

[redcat42]

.